Frequencies for first 10,000 rows of measurestartdate variable in hqi_hosp_time

    Measure |
 Start Date |      Freq.     Percent        Cum.
------------+-----------------------------------
  01jan2013 |        474        4.74        4.74
  01apr2014 |      9,049       90.49       95.23
  01oct2014 |        477        4.77      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 16 Nov 2016